Variety of image files, checkout here
Lets us know the types of image files first
JPEG (or JPG) - Joint Photographic Experts Group
PNG - Portable Network Graphics
GIF - Graphics Interchange Format
TIFF - Tagged Image File
PSD - Photoshop Document
PDF - Portable Document Format
EPS - Encapsulated Postscript
AI - Adobe Illustrator Document
INDD - Adobe Indesign Document
RAW - Raw Image Formats
How and where to use these image files
1. JPEG (or JPG) - Joint Photographic Experts Group
There is no difference between the .jpg and .jpeg filename extensions. Regardless of how you name your file, it is still the same format and will behave the same way.
The only reason that the two extensions exist for the same format is because .jpeg was shortened to .jpg to accommodate the three-character limit in early versions of Windows
2. PNG - Portable Network Graphics
The reason PNGs are used in most web projects is that you can save your image with more colors on a transparent background. PNGs are amazing for interactive documents such as web pages but are not suitable for print. While PNGs you can edit them and not lose quality, they are still low resolution.
3. GIF - Graphics Interchange Format
GIFs are most common in their animated form, which are all the rage on Tumblr pages and in banner ads. In their more basic form, GIFs are formed from up to 256 colors in the RGB colorspace. Due to the limited number of colors, the file size is drastically reduced.
4. TIFF - Tagged Image File
A TIF is a large raster file that doesn't lose quality. This file type is known for using "lossless compression," meaning the original image data is maintained regardless of how often you might copy, re-save, or compress the original file.
5. PSD - Photoshop Document
PSDs are files that are created and saved in Adobe Photoshop, the most popular graphics editing software ever. This type of file contains "layers" that make modifying the image much easier to handle.
6. PDF - Portable Document Format
PDFs were invented by Adobe with the goal of capturing and reviewing rich information from any application, on any computer, with anyone, anywhere.
7. EPS - Encapsulated Postscript
EPS is a file in vector format that has been designed to produce high-resolution graphics for print. Almost any kind of design software can create an EPS.
The EPS extension is more of a universal file type (much like the PDF) that can be used to open vector-based artwork in any design editor, not just the more common Adobe products. This safeguards file transfers to designers that are not yet utilizing Adobe products, but may be using Corel Draw or Quark.
8. AI - Adobe Illustrator Document
Adobe Illustrator is the industry standard for creating artwork from scratch and therefore more than likely the program in which your logo was originally rendered. Illustrator produces vector artwork, the easiest type of file to manipulate.
9. INDD - Adobe InDesign Document
INDDs (InDesign Document) are files that are created and saved in Adobe InDesign. InDesign is commonly used to create larger publications, such as newspapers, magazines and eBooks.
10. RAW - Raw Image Formats
A RAW image is the least-processed image type on this list -- it's often the first format a picture inherits when it's created
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